Fountain-pen.



I No. 816,344. PATENTED MAR. 27-, 1906.

w. N. LANCASTER FOUNTAI'N PEN.

APPLICATION FILED OCT. 13, 1905.

WARREN N. LANCASTER, OF BALTIMORE, MARYLAND.

FOUNTAIN-PEN.

Specification of Letters Patent.

Patented March 27, 1906.

Application filed October 13, 1905. Serial No. 282,638.

To (LZLI whom it may concern.-

Be it known that I, WARREN N. LANCAS- TER, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Fountain-Pens, of which the following is a specification.

My invention relates to an improvement in fountain-pens; and the object is to provide means for regulating the feed of the ink to the pen, and in connection with this feed regulation my invention makes it perfectly feasible to use the ordinary long-point pen as well as a stub, which heretofore has been practically impossible.

\Vith these objects in view my invention consists in a tube having a feed-orifice therein on the side adjacent to the pen to supply the ink to the pen, in connection with a feedvalve which fits the bore of the tube, is adjustable therein and removable therefrom, and provided with a channel extending longitudinally thereof for conducting the ink from the barrel of the pen to the feed-orifice.

My invention further consists in certain novel features of construction and combinations of parts, which will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional view through a portion of a pen, showing my improvement a plied thereto. Fig. 2 is a cross-section, and ig. 3 is a detail, of the feed-tube; and Fig. 4 is a similar view of the valve.

A represents the feed-tube, one end 1 of which is cylindrical, whereby it is adapted to fit the barrel of the pen and retain its position therein by friction, and the other end is preferably cut away more or less as a tube on one side, the opposite side being adapted to fit the curvature of the end side of the pen. At this point it is provided with a feed-orifice 3 which is cut through the tube and through which the ink is supplied to the pen.

The valve B is in the main cylindrical in form and fitted to the bore of the tube, where it is held in place by friction. When forced into the tube the full distance, it is stopped by striking the end 4 of the bore. When in this position, its outer surface is flush with the cut-away portion 2 of the end side of the tube. The valve is channeled longitudinally, as at 5, nearly throughout its length, the channel starting at the inner end of the valve and extending nearly to the outer end, where it gradually decreases in depth until it reaches nothing at the surface of the valve. This channel alines with the orifice in the tube when the valve is inserted, and by the endwise adjustment of the valve in the tube the feed to the pen is regulated with precision. In other words, the amount of ink issuing through the orifice is determined by the position of the valve within the tube, and this is adjusted to suit the style of pen used, as well as the requirements of the penman. By pulling the valve out it forms or increases the air-inlet through the orifice, the size of which inlet may be very finely and accurately regulated. The length of the valve exceeds that of the tube, so that the entire end always protrudes beyond the end of the tube, thus affording means for taking hold of the valve and manipulating it.

As previously stated, it is my purpose to provide a feed for fountain-pens which will make it possible to use any style of pen, quantities of which are at present a drug on the market, because they cannot be utilized on any known form of fountain-pen, it being the custom almost exclusively to use the socalled stub-pen. In this way the usefulness of the fountain-pen is greatly increased.

It is evident that slight changes might be resorted to in the form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact description herein set forth; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, i"s

1. A feed for fountain-pens comprising a tube having an ink-opening at the top and an air-opening at the bottom, and a valve having an ink-duct therethrough, said valve slidingly mounted within said tube and snugly fitting the same, and constituting a means to wholly or partially close the air-opening and at the same time regulate communication between the ink-opening in the tube and the ink-duct in the valve.

2. A feed for fountain-pens comprising a I Inunication between said ink-opening and the tube and a longitudinally-channeled valve channel in said valve. 10 slidingly mounted Within said tube and f In testimony whereof I afliX my signature snugly fitting the same, said tube having an in presence of two Witnesses. ink-opening at the top and an air-opening at WARREN N. LANCASTER. the bottom, and said valve constituting a lVitnesses: means to Wholly or partially close said air- C. H. DUMAIs, opening and at the same time regulate 00111- H. B. AHRENsFELD. 

